Glucose, lactate, pyruvate, aspartate, glutamine, glutamate, alanine and serine conversion rates in uninfected and C. parvum-infected HCT-8 cultivated in glutamine supplemented medium (2 mM) under hyperoxic (21% O2) and physioxic (5% O2) conditions (n = 6, each group). Metabolite conversion rates were analyzed at 24 h p. i. in the cultivation supernatants of the cells and presented as interleaved box and whiskers plots with line at median, bars indicating maximum and minimum values. Statistical significance (* = p ≤ 0.05, ** = p ≤ 0.01, **** = p ≤ 0.0001) was evaluated by t-test for independent samples.